Glassware.



oTIs A. Myeafrm, or NEW Yoan, Nl Y,

@Lessa/ARE.

. Specification of Letters Patent. I

Application led June 5, 1908. Serial No. 436,885..

To all whom tt may concern:

Be it known that I, Oris A. MYGA'iT, citizen of the United States,` andresident of the city of New York, in the county of N ewv York and Stateof New York, have invented a certain new and useful AImprovement incovered with' radial' covered with glass shades and reflectors,vsurfaces will-be covered with substantially reiectinr type flectedlinack into This islthe type of prism which I prefer to Glassware, ofwhich the following is a speciiication.

a, thed My invention relatesto a new type of cor- I rugations for ribbedglassware. which is intended to combine in an integral glass article theoptical valu'eof radial light directing prisms and lens-like surfaces.

Thevobject of my invention is to make part of whose radial lightdirectine prisms and art of whose surfaces will lie covered wit lenslikeprotuberances calculated ,to magnify and concentrate the light which ismitted through. such. lenticular l.protuberances It is. well knownthatifa (dass body is prisms 0I the double the lig ,the` lnterior of theglass.

use in connection with my lenticular light transmitting andl magnifyingsurfaces, although my resent invention can .'alsobe used in com inationwith other types of substantiallyy -radial prisms. Where glassreflectors are made having theiry exterior double reflecting prisms,their entire surface becomes vof aj homogeneous type of reflecting toomuch light 1s concentrated down and out of the open mouth, and notenough light is allowed to be transmitted .through the glass and out.

' In my present invention, swell out the prism at different points intoa curved len ticular surface-calculated to concentrate or magnify thelight rays which pass through it.v When viewed from the inside, the re-Hector appears composed of substantially radial prisms of very brilliantappearance alternating with circular or oval dark spaces. These darkspaces are caused by the fact that the light rays are not reflected fromthese circular or oval areas caused by swelling the prism. 'into adefinite lenticular curve,- but pass through the glass and are concen-Itratedin definite directions. When vviewed fromlthe outside these roundor oval spaces transl ht rays willv be. rey medium, and practicallyvsimilar view of `'l i become brilliantly illuminated.lensesagainstreflecting is throwing most of the ark surfaces prisms partwhich ight in the opposite dirpfction.

As a rule I prefer to make use of substantially radial corrugationswhich run from topl to bottom on the of the double its length acts as adouble reflecting prism,-

which reflects the light rays to the opposite slde of the glass and partor parts of its length is a light magniying surface for rays that aretransmitted through this lenticularport-ion.. 4These lensconcentrationwhich like parts permit of a permitted.

no other reflector has l'By varyin the relative lenticular an lighttransmitting surface to the double reflecting surface, and also therelative and proportionate areas occupied by the different'parts of thecorrugation, acting according to optical laws, I am enabledjto makereilectors having practically any light distribution. These will alsohave the ornamental feature that upon the out side those parts which areintended'to directly vtransmit the light, appear to be brilliantlyilluminated 'by brilliant sparkling beads or spherical bodies of light.

Figure 1 is a side elevation of a globe ern bodylng my invention. Fig. 2is a similar View of a reflector. Fig. 3 is. still another sideelevationof a reiiector. `Figjet` is a front View of a single prism.Fig. 5 is a another form ofprisnn. Fig. 4a. is a side view of the prismssli'wn in Fig. 4. Fig. 5a is a side view of the prism shown infront'view in Fig. 5. Fig. 6 is a. side elevation' and partial section ,of one,of the modified forms of reflector showing 'the action of some of theraysv of light. All the views show my invention in modiied ways. Fig. lis aside elevation of a globe having Patented Nov. ee, '1910.

outside of my shade i or reflector, these corrugations as above set out,and on another position of the i radial prisms on its outer surfaceinter.

may cover the wholesurface of the globe.

This'also applies to Fig. 9 and 8. AThe 110i lens-like protuberancesallow the light .to pass through and concentrate 1t incertain definitedirections.

Figs. 2 and 3 are side elevations of two 5 forms of my invention appliedto reflectors.

Fig. 2 shows a row of lenses, each of which extends over" the width oftwo prisms. In Fig. 3 a number of rows of lenses are banded together tostron ly `concentrate the l1ght which passes thro gli this portion ofthe relector.

Figs. 4 and 5 show Iplan views of two ris matic ribs' modified y twoforms of enslike protuberances. lSide elevations of thesev corrugationsare shown in Figs. 4a and 5a.

Fig. 6 is a partial elevation and partial section-which illustrates howthe rays of light from a lamp within a reflector will be reflected backfrom the prisms A-A and l out of the'mouth 'ofthe reflector; whereas ithe rays of light which strike the lens surfaces B--B pass through thereflector at these points and are concentrated in certain OTIS A.MYGATT. Witnesses: Y

CuAs. K. Divine, E. L. Connrr.

